The 3rd International Conference on Materials and Environmental Science (ICMES2019) is organized by IBN Zohr University, National School of Applied Sciences, Agadir Morocco and the Association: Moroccan Center for Sciences Development -MoCeDeS. ICMES2019 is an interdisciplinary platform for researchers and industrials to promote a multi-sectoral and collaborative approach in the field of development of new and innovative approaches in materials and their applications in energy and renewable energy, environmental science and sustainable development, biotechnology and electrical engineering.